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Userland: Port tac to LibMain

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Federico Guerinoni 2022-01-08 17:40:54 +01:00 • committed by Brian Gianforcaro
parent 0e6576b376
commit 05f0f70b00
2 changed files with 8 additions and 11 deletions
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1
Userland/Utilities/CMakeLists.txt
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@ -140,6 +140,7 @@ target_link_libraries(shot LibGUI)
target_link_libraries(sql LibLine LibSQL LibIPC) target_link_libraries(sql LibLine LibSQL LibIPC)
target_link_libraries(stat LibMain) target_link_libraries(stat LibMain)
target_link_libraries(strace LibMain) target_link_libraries(strace LibMain)
target_link_libraries(tac LibMain)
target_link_libraries(su LibCrypt LibMain) target_link_libraries(su LibCrypt LibMain)
target_link_libraries(tar LibArchive LibCompress) target_link_libraries(tar LibArchive LibCompress)
target_link_libraries(telws LibProtocol LibLine) target_link_libraries(telws LibProtocol LibLine)

18
Userland/Utilities/tac.cpp
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@ -1,27 +1,26 @@
/* /*
* Copyright (c) 2021, Federico Guerinoni <guerinoni.federico@gmail.com> * Copyright (c) 2021-2022, Federico Guerinoni <guerinoni.federico@gmail.com>
* *
* SPDX-License-Identifier: BSD-2-Clause * SPDX-License-Identifier: BSD-2-Clause
*/ */
#include <LibCore/ArgsParser.h> #include <LibCore/ArgsParser.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <errno.h> #include <errno.h>
#include <string.h> #include <string.h>
#include <unistd.h> #include <unistd.h>
int main(int argc, char** argv) ErrorOr<int> serenity_main(Main::Arguments arguments)
{ {
if (pledge("stdio rpath", nullptr) < 0) { TRY(Core::System::pledge("stdio rpath"));
perror("pledge");
return 1;
}
Vector<StringView> paths; Vector<StringView> paths;
Core::ArgsParser args_parser; Core::ArgsParser args_parser;
args_parser.set_general_help("Concatenate files or pipes to stdout, last line first."); args_parser.set_general_help("Concatenate files or pipes to stdout, last line first.");
args_parser.add_positional_argument(paths, "File path(s)", "path", Core::ArgsParser::Required::No); args_parser.add_positional_argument(paths, "File path(s)", "path", Core::ArgsParser::Required::No);
args_parser.parse(argc, argv); args_parser.parse(arguments);
Vector<FILE*> streams; Vector<FILE*> streams;
auto num_paths = paths.size(); auto num_paths = paths.size();
@ -54,10 +53,7 @@ int main(int argc, char** argv)
} }
}; };
if (pledge("stdio", nullptr) < 0) { TRY(Core::System::pledge("stdio"));
perror("pledge");
return 1;
}
for (auto* stream : streams) { for (auto* stream : streams) {
Vector<String> lines; Vector<String> lines;